#211F4D
Closest named color: Oxford Blue (#1B263B). oklch(27% 0.082 281.3), rgb(33, 31, 77).
Aa
White text reads best on this color (15.35:1).
About this color
#211F4D is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.082 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.044 away. White text reads best on it, at 15.35:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.35:1 |
Values
| HEX | #211F4D |
| RGB | rgb(33, 31, 77) |
| HSL | hsl(243, 43%, 21%) |
| OKLCH | oklch(27% 0.082 281.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #211F4D | 15.35:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #211F4D | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #211F4D text on white | 15.35:1 | AAA | Lc 102.1 | Preferred for body text |
| #211F4D text on black | 1.36:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D2D6FD
oklch(88.5% 0.054 280.6)
-
Step 300
300
#B5B9FF
oklch(80.8% 0.099 281.4)
-
Step 400
400
#9192FE
oklch(70.6% 0.156 281.2)
-
Step 500
500
#7972FD
oklch(63% 0.2 281.2)
-
Step 600
600
#6556EC
oklch(55.7% 0.217 281.2)
-
Step 700
700
#5544CD
oklch(49.1% 0.202 281.6)
-
Step 800
800
#453AA6
oklch(42.8% 0.167 281.3)
-
Step 900
900
#393383
oklch(37.6% 0.13 281.5)
-
Step 950
950 (this color)
#211F4D
oklch(27% 0.082 281.3)
#211F4D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #05274F | 0.037 |
| Deuteranopia (no green cones) | #02234C | 0.038 |
| Tritanopia (no blue cones) | #0F2932 | 0.070 |
| Achromatopsia (no color) | #252525 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211F4D
#211F4D
oklch(27% 0.082 281.3)
- #2C2700
#2C2700
oklch(27% 0.057 102.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #211F4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.044
- Dark Indigo #1F0954 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.056
- Marine #042E60 ΔE 0.056
- Dark #1B2431 ΔE 0.059
- Midnight Blue #191970 ΔE 0.066
- Prussian Blue #1D3557 ΔE 0.067
- Navy Blue #001146 ΔE 0.070
Use #211F4D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.